List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Venus flytrap, Venus's flytrap

usually written using kana alone  noun  noun (generic) 

• three-spined stickleback (Gasterosteus aculeatus)

usually written using kana alone  noun  noun (generic) 

• damselfly (Zygoptera spp.), demoiselle

usually written using kana alone  noun  noun (generic) 

• acorn barnacle (Balanomorpha spp.)

usually written using kana alone  noun  noun (generic) 

• pheasant's eye (species of buttercup, Adonis ramosa)

rarely used kanji form  usually written using kana alone  food, cooking  noun  noun (generic) 

• flat noodles

usually written using kana alone  noun  noun (generic) 

• painted snipe (Rostratula benghalensis)

noun  noun (generic)  usually written using kana alone 

• red eyes, bloodshot eyes
• red-eye
• red mullet (Chelon haematocheilus)
• facial gesture of pulling one's eyelid down and sticking out one's tongue

usually written using kana alone  noun  noun (generic) 

• bloodworm (Halla okudai)
• red mite (Trombicula akamushi), chigger mite, harvest mite

usually written using kana alone  noun  noun (generic) 

• loggerhead turtle (Caretta caretta)